Federal Data Hub › IRS Migration Flows · JSON

Custer County, SD

County-to-county migration · IRS SOI · filing years 2022-2023

Net migration: +52 tax returns · +194 people · +$22,926,000 AGI

Inflow
411 returns · 783 people · $44,300,000 AGI
Outflow
359 returns · 589 people · $21,374,000 AGI

Top origins (where new residents came from)

CountyReturnsAGI
Pennington County, SD93$6,582,000
Fall River County, SD31$2,073,000

Top destinations (where leavers went)

CountyReturnsAGI
Pennington County, SD96$6,832,000
Fall River County, SD23$1,227,000

IRS migration data tracks where tax filers lived in consecutive years. A "return" is roughly a household; "AGI" is the adjusted gross income that moved with them. Net migration = inflow − outflow. Small county-pair flows are suppressed by the IRS for privacy and shown blank.

Source: IRS SOI Migration Data. License: CC0 1.0.